What was found in ZIP 19604
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 4132.5 µg/L 41% of the EPA limit 10000 µg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019
Highest in the ZIP: 6240 µg/L — MUHLENBERG TWP MUNI AUTH · 22,400 people · 2019 | 2/2 | SYR4 |
| Fluoride | 960 µg/L 24% of the EPA limit 4000 µg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 1/2 | SYR4 |
| Copper | 288.75 µg/L 22% of the EPA limit 1300 µg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| TTHM | 69.155 µg/L 86% of the EPA limit 80 µg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| Chloroform | 59.54 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 54 µg/L 90% of the EPA limit 60 µg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| Lead | 36.25 µg/L 242% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 28.2 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 20 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| Barium | 18 µg/L 0.9% of the EPA limit 2000 µg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 12.35 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 10.4 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019 | 2/2 | SYR4 |
| Lithium | 10.3 µg/L No EPA limit set Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 1/2 | UCMR-5 |
| Dibromochloromethane | 1.6 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2019
Highest in the ZIP: 6 µg/L — MUHLENBERG TWP MUNI AUTH · 22,400 people · 2019 | 2/2 | SYR4 |
| Bromoform | 3.8 µg/L No EPA limit set Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2 µg/L No EPA limit set Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2019 | 1/2 | SYR4 |
| cis-1,2-Dichloroethylene | 1.21 µg/L 1.7% of the EPA limit 70 µg/L Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2019 | 1/2 | SYR4 |
| Trichloroethylene | 0.8400 µg/L 17% of the EPA limit 5 µg/L Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0054 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2024
Highest in the ZIP: 0.0160 µg/L — MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0044 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2024
Highest in the ZIP: 0.0156 µg/L — MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 2/2 | UCMR-5 |
| PFOS | 0.0115 µg/L No EPA limit set Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 1/2 | UCMR-5 |
| PFOA | 0.0066 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2024
Highest in the ZIP: 0.0088 µg/L — MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 2/2 | UCMR-5 |
| Pfba | 0.0066 µg/L No EPA limit set Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0056 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2024 | 2/2 | UCMR-5 |
| Pfhpa | 0.0030 µg/L No EPA limit set Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2024
Highest in the ZIP: 0.0055 µg/L — MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 2/2 | UCMR-5 |
| PFHXS | 0.0043 µg/L No EPA limit set Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 1/2 | UCMR-5 |
| PFNA | 0.0043 µg/L No EPA limit set Highest in the ZIP: MUHLENBERG TWP MUNI AUTH · 22,400 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: READING AREA WATER AUTHORITY · 95,100 people · 2025
Highest in the ZIP: 0.0010 mg/L — MUHLENBERG TWP MUNI AUTH · 22,400 people · 2025 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 19604
| Supplier | State | Population served |
|---|---|---|
| READING AREA WATER AUTHORITY | PA | 95,100 |
| MUHLENBERG TWP MUNI AUTH | PA | 22,400 |
Frequently asked questions about ZIP 19604 tap water
Is the tap water in ZIP 19604 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 19604. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 19604?
2 public water suppliers report EPA drinking-water monitoring for ZIP 19604. Each is listed above with its population served.
What contaminants are in ZIP 19604's water?
EPA monitoring detected Nitrate, Fluoride, Copper, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.